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a fost răspuns

a+b+c=203073,a+b=130320,b+c=129862 afla a=?,b=?,c=? apoi calculati a+b-c=?

Răspuns :

Cocirmariadenis
a+b+c=203073
a+b    =130320
    b+c=129862

203 073-130 320=72 753 (c)
129 862-72 753=57 109 (b)
130 320-57 109=73 211 (a)

a+b-c=73 211+57 109-72 753=130 320-72 753=57 567
Bookhunter
c=203073-130320=72753
a=203073-129862=73211
b=203073-72753-73211=57109
a+b-c=73211+57109-72753=57567